[svn-upgrade] Integrating new upstream version, ion3 (20071109)

[ion3.git] / utils / ion-statusd / statusd_load.lua

diff --git a/utils/ion-statusd/statusd_load.lua b/utils/ion-statusd/statusd_load.lua
new file mode 100644 (file)
index 0000000..88162af
--- /dev/null
+++ b/utils/ion-statusd/statusd_load.lua
@@ -0,0 +1,70 @@
+--
+-- ion/mod_statusbar/ion-statusd/statusd_load.lua
+-- 
+-- Copyright (c) Tuomo Valkonen 2004-2006.
+--
+-- Ion is free software; you can redistribute it and/or modify it under
+-- the terms of the GNU Lesser General Public License as published by
+-- the Free Software Foundation; either version 2.1 of the License, or
+-- (at your option) any later version.
+--
+
+--
+-- We should really use getloadavg(3) instead and move the meter to
+-- Ion side to get properly up-to-date loads. But until such an export
+-- is made, and we use potentially blocking files and external programs, 
+-- this meter must be in ion-statusd.
+--
+
+local defaults={
+    update_interval=10*1000,
+    load_hint="1min",
+    important_threshold=1.5,
+    critical_threshold=4.0
+}
+
+local settings=table.join(statusd.get_config("load"), defaults)
+
+local load_timer
+
+local function get_hint(v)
+    local i="normal"
+    if v then
+        if v>settings.critical_threshold then
+            i="critical"
+        elseif v>settings.important_threshold then
+            i="important"
+        end
+    end
+    return i
+end
+
+local function fmt(l)
+    if not l then
+        return "?"
+    else
+        return string.format("%0.2f", l)
+    end
+end
+
+local function update_load()
+    local lds = statusd.getloadavg()
+    f1, f5, f15 = fmt(lds["1min"]), fmt(lds["5min"]), fmt(lds["15min"])
+    statusd.inform("load", f1..", "..f5..", "..f15)
+    statusd.inform("load_hint", get_hint(lds[settings.load_hint]))
+    statusd.inform("load_1min", f1)
+    statusd.inform("load_1min_hint", get_hint(lds["1min"]))
+    statusd.inform("load_5min", f5)
+    statusd.inform("load_5min_hint", get_hint(lds["5min"]))
+    statusd.inform("load_15min", f15)
+    statusd.inform("load_15min_hint", get_hint(lds["15min"]))
+    load_timer:set(settings.update_interval, update_load)
+end
+
+-- Init
+--statusd.inform("load_template", "0.00, 0.00, 0.00");
+
+load_timer=statusd.create_timer()
+update_load()
+
+